SCA: security update for joserfc (GHSA-9pg5-8c7x-5hfx)

medium Tenable Cloud Security Plugin ID 478024

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption
(JOSE) standards. Prior to 1.7.6, joserfc compact JWS deserialization calls bytes.split() before enforcing
the existing aggregate segment-size limits. When attacker-controlled compact serialization bytes reach
deserialize_compact(), the split creates copies of the header, payload, and signature segments before
ExceededSizeError rejects them, causing an additional allocation approximately proportional to the
supplied token. Requests that exhaust available process memory can therefore cause an availability failure
even though signature verification fails. This issue is fixed in version 1.7.6. (CVE-2026-119284)

Solution

Update the joserfc library and its related packages to version 1.7.6 or later.

Plugin Details

Severity: Medium

ID: 478024

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/30/2026

Updated: 10/30/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P

CVSS Score Source: CVE-2026-119284

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/30/2026

Vulnerability Publication Date: 10/29/2026

Reference Information

CVE: CVE-2026-119284

cwe: CWE-400

Detections

Analytics